﻿using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Runtime.InteropServices.WindowsRuntime;
using Windows.Foundation;
using Windows.Foundation.Collections;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Controls.Primitives;
using Windows.UI.Xaml.Data;
using Windows.UI.Xaml.Input;
using Windows.UI.Xaml.Media;
using Windows.UI.Xaml.Navigation;
using douban.Core.Apis;
using douban.Core.ViewModels;

// The Blank Page item template is documented at http://go.microsoft.com/fwlink/?LinkId=234238

namespace douban.app.Views
{
    /// <summary>
    /// An empty page that can be used on its own or navigated to within a Frame.
    /// </summary>
    public sealed partial class CommentsPage 
    {
        public CommentsPage()
        {
            this.InitializeComponent();
        }

        protected override void OnNavigatedTo(NavigationEventArgs e)
        {
            base.OnNavigatedTo(e);
        }

        private async void BarButtonRefresh_OnClick(object sender, RoutedEventArgs e)
        {
            var datasource = LvAllComments?.ItemsSource as IncrementalLoadingCollection<Comment>;
            if (datasource != null)
                await datasource.Refresh();
        }

        private void BarButtonToTop_OnClick(object sender, RoutedEventArgs e)
        {
            if (LvAllComments.Items != null && LvAllComments.Items.Count > 0)
            {
                var item0 = LvAllComments.Items[0];

                LvAllComments.ScrollIntoView(item0, ScrollIntoViewAlignment.Leading);
            }
        }
    }
}
